LM380 Datasheet | National Semiconductor

Description The LM380 is a power audio amplifier for consumer applications. In order to hold system cost to a minimum, gain is internally fixed at 34 d B. A unique input stage allows ground referenced input signals. The output automatically selfcenters to one-half the supply voltage. The output is short circuit proof with internal thermal limiting. The package outline is standard dual-in-line. The LM380N uses a copper lead frame. The center three pins on either side prise a heat sink. This makes the device easy to use in standard PC layouts. Uses include simple phonograph amplifiers, inters, line drivers, teaching machine outputs, alarms, ultrasonic drivers, TV sound systems, AM-FM radio, small servo drivers, power converters, etc. A selected part for more power on higher supply voltages is available as the LM384. For more information see AN-69. Features n Wide supply voltage range: 10V-22V n Low quiescent power drain: 0.13W (VS= 18V) n Voltage gain fixed at 50 n High peak current capability: 1.3A n Input referenced to GND n High input impedance: 150kΩ n Low distortion n Quiescent output voltage is at one-half of the supply voltage n Standard dual-in-line package Connection Diagrams (Dual-In-Line Packages, Top View) Order Number LM380N See NS Package Number N14A Order Number LM380N-8 See NS Package Number N08E © 2004 National Semiconductor Corporation DS006977 .national. Block and Schematic Diagrams LM380N LM380N-8 .national. Absolute Maximum Ratings (Note 1) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage Peak Current Package Dissipation 14-Pin DIP (Note 7) Package Dissipation 8-Pin DIP (Note 7) Input Voltage Storage Temperature 22V 1.3A 8.3W 1.67W ±0.5V - 65˚C to +150˚C Operating Temperature Junction Temperature Lead Temperature (Soldering, 10 sec.) ESD rating to...